Now showing items 1-12 of 86

    • Graph learning techniques using structured data for IoT air pollution monitoring platforms 

      Ferrer Cid, Pau; Barceló Ordinas, José María; García Vidal, Jorge (Institute of Electrical and Electronics Engineers (IEEE), 2021-03-22)
      Article
      Open Access
      Existing air pollution monitoring networks use reference stations as the main nodes. The addition of low-cost sensors calibrated in-situ with machine learning techniques allows the creation of heterogeneous air pollution ...
    • Beyond the star of stars: An introduction to multihop and mesh for LoRa and LoRaWAN 

      Pueyo Centelles, Roger; Freitag, Fèlix; Meseguer Pallarès, Roc; Navarro Moldes, Leandro (2021-04)
      Article
      Open Access
      LoRa has emerged in recent years as a wireless technology providing long-range communication for low-power Internet-of-Things (IoT) devices. The LoRaWAN architecture adds the medium access control (MAC) and application ...
    • A two-stage multi-criteria optimization method for service placement in decentralized edge micro-clouds 

      Panadero, Javier; Selimi, Mennan; Calvet Liñán, Laura; Marques Puig, Joan Manuel; Freitag, Fèlix (Elsevier, 2021-08)
      Article
      Restricted access - publisher's policy
      Community networks are becoming increasingly popular due to the growing demand for network connectivity in both rural and urban areas. Community networks are owned and managed at the edge by volunteers. Their irregular ...
    • An IoT-based infrastructure to enhance self-evacuations in natural hazardous events 

      Finochietto, José Mariano; Micheletto, Matías; Eggly, Gabriel M.; Pueyo Centelles, Roger; Santos, Rodrigo; Ochoa, Sergio F.; Meseguer Pallarès, Roc; Orozco, Javier (2021-02-05)
      Article
      Restricted access - publisher's policy
      Regardless of the extensive research conducted on large-scale evacuations, the instrumentation of these processes still represents an open issue for first response organizations. Self-evacuation of civilians that follows ...
    • Open project-based learning for dynamic adaptability of IT education 

      Tous Liesa, Rubén; Freitag, Fèlix (2020-12-20)
      Article
      Open Access
      The pace of technological change is accelerating, the duration of the trends is becoming shorter and the number of technological alternatives to solve IT problems grows quickly. Keeping IT higher education course curricula ...
    • On the performance of QUIC over wireless mesh networks 

      Manzoor, Jawad; Cerdà Alabern, Llorenç; Sadre, Ramin; Drago, Idilio (2020-10)
      Article
      Restricted access - publisher's policy
      The exponential growth in adoption of mobile phones and the widespread availability of wireless networks has caused a paradigm shift in the way we access the Internet. It has not only eased access to the Internet, but also ...
    • LoRaMoto: a communication system to provide safety awareness among civilians after an earthquake 

      Pueyo Centelles, Roger; Meseguer Pallarès, Roc; Freitag, Fèlix; Navarro Moldes, Leandro; Ochoa, Sergio; Santos, Rodrigo (Elsevier, 2021-02)
      Article
      Restricted access - publisher's policy
      Civilians in areas hit by earthquakes become in particular concerned about the safety of family and friends. However, outages in communications networks following these events limit their capacity to get information. So, ...
    • A low-cost multicomputer for teaching environments 

      Aliagas, Carles; García Famoso, Montserrat; Meseguer Pallarès, Roc; Millán Marco, Pere; Molina Clemente, Carlos Maria (2020-08)
      Article
      Open Access
      We propose a teaching resource that uses Hard Kernel boards to build an MPI server with 256 cores. Although this system has a relatively low performance, the aim is to provide access to hundreds of cores for carrying out ...
    • Blockchain for economically sustainable wireless mesh networks 

      Kabbinale, A.R.; Dimogerontakis, Emmanouil; Selimi, Mennan; Ali, Anwaar; Navarro Moldes, Leandro; Sathiaseelan, Arjuna; Crowcroft, Jon (2020-06-25)
      Article
      Open Access
      Decentralization, in the form of mesh networking and blockchain, two promising technologies, is coming to the telecommunications industry. Mesh networking allows wider low-cost Internet access with infrastructures built ...
    • Multisensor data fusion calibration in IoT air pollution platforms 

      Ferrer Cid, Pau; Barceló Ordinas, José María; García Vidal, Jorge; Ripoll, Anna; Viana, Mar (2020-04-01)
      Article
      Open Access
      This article investigates the calibration of low-cost sensors for air pollution. The sensors were deployed on three Internet of Things (IoT) platforms in Spain, Austria, and Italy during the summers of 2017, 2018, and 2019. ...
    • ¿Podemos darle la vuelta a la enseñanza del desarrollo del software? 

      Marco Simó, Josep M.; Arnedo Moreno, Joan; Marco Galindo, María Jesús; Guitart Hormigo, Isabel; Rius Gavídia, María Ángeles; Rodríguez González, María Elena; Cabot Sagrera, Jorge; Caballé Llobet, Santiago; Riera, Daniel (Asociación de Técnicos de Informática, 2008-05)
      Article
      Open Access
      Con la llegada del Espacio Europeo de Educación Superior (EEES) a las universidades espa­ñolas, el ámbito de conocimiento de desarrollo del software, al igual que otros, tiene una interesante oportunidad para replantear ...
    • On participatory service provision at the network edge with community home gateways 

      Khan, Amin M.; Freitag, Fèlix (Elsevier, 2017-06-12)
      Article
      Open Access
      Edge computing is considered as a technology to enable new types of services which operate at the network edge. There are important use cases in ambient intelligence and the Internet of Things (IoT) for edge computing ...